Double twist twisting spindle



Sept. 3, 1935.

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DOUBLE TWIST Twrsnne SPINDLE' lmet; Feb. 17. 19:52

5 Sheets-Sheet 1 Sept. 3, 1935. Yogaocl-lnA-lm :r AL 2,013,023

DOUBLE Twxs msnm SPINDLE Filed' Feu. A17,'1932 5 sheets-sngt .a

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'Sept-3,1935. a B cHMmN em. J `2,013,023

DOUBLE TWIST T'STING SPINDLE I .fusain-fm1?, 1932 l s sheets-sheet 55 Sept. 3, 1935. '0. BocHMANN Er AL DOUBLE TWIST TWISTING SPINDLE 5 Sheets-Sheet 4 Filed Feb. l3.7, 1952 o. BocHMANN Er A1.

DOUBLE-TWIST TWISTING SPINDLE Sept. 3, 1935.

5 Sheets-Sheet 5 Filed Feb. 17, 1932 Patented Sept. 3, 1935 2,013,023 Donata 'rwis'r 'rwrs'rmo SPINDLE lOtto Buchmann and Wilhelm Lenk, Remscheid- Lennep, Germany, assignors to Barmer Maschnenfabrik Aktiengesellschaft, Wuppertal- Oberbarmen, Germany Application February 17, 1932, serial No. 593,513

y In Germany July 3,1931

8 Claims. (Cl. 117-23) This invention relates to a double twist twisting spindle, in which the thread is drawn from the stationary unwinding spool, conducted through the hollow twisting spindle and over a thread guiding element to the winding spool.

In the known twisting spindles of this type the thread guiding element is arranged on the spindle'so that it participates in the rotation thereof. However, in order to prevent the thread run- 10 ning over, the thread guiding element to the winding spool from coming into contact with the I unwinding spool during the twisting, the thread guiding element must be of a certain diameter. Consequently, such a spindle has heavy rotating masses which consume a great deal of power,-

25 tion by a weight rigidly mounted thereon. However, owing to the positive mounting of -the spool holder one sided wear occurs at the inner bearing points so that they only possess. a short life.

These disadvantages are overcome by the invention which consists in that a hollow thread guiding body is loosely mounted on the spindle and consequently does not participate in the rotating movement thereof. The -thread guiding body may be domed orconical. In order to prevent the thread from rubbing against the stationary edge of the guiding body when leaving the twisting spindle, it is advisable for the lower edge of the thread guiding body, stationary on the revolving spindle, to be covered by the ,upper edge of the thread storage ring with the twisting spindle. In this arrangement the thread guiding body is so dimensioned that ilne to medium threads which can be worked with-a. small balhowever coarse thread is to be worked, an inloon can be dealt with on this arrangement. If

it is preferable, in order to avoid disturbing noises occurring owing to the vibrations of the machine, to provide a resilient mounting by elastic material, such as springs or the like.

' The invention presents the advantage that, owing to the-thread guiding body remaining stationary, thev power required is reduced by one half, as the rotating masses are themselves reduced, but above all because these are approached as far as possible towards the turning axis of the spin- 10 dle, so that a considerable cheapening in therunning of these spindles is obtained. As the thread guiding. body no longer participates in the rotation, no air movement is caused so that the attendance of the machine is in no way hindered and no special devices adding to the costof the 1 5 machine are necessary for deflecting the air movement. A. further advantage consists in that, owing to the thread guiding body being stationary, the weight designed for holding stationary the spool holder carrying the unwinding spool can be loosely suspended or'loosely inserted so that it does not hold the thread guiding body and consequently the spool holder in a certain position, these elements being adapted to move and Iturn freely within certain limits. By this means 25 however any one sided wear of the bearings is avoided so that their life is considerably prolonged. It is true that both parts are prevented by the loose weight with the spindle from directly rotating, as this weight causes a continual 30 braking in opposite direction.

Several embodiments of the invention are illustrated by way of example in the accompanying .drawings in which:-

Figs. 1, 2, 3, and 4 show each in longitudinal 35 section of 'one form construction of the twisting spindle.

Fig. 5 is an end view of-Fig. 4 seen from the right.

Fig. e. shows in 1ongitudina1 section a finir@ form of co ruction.

Fig. 7 is n end view of Fig. 6, seen from the right.

Fig. 8 shows in longitudinal section a modification of the form of construction of the twisting spindle shown in Fig. 6.

`Fig 9 shows in longitudinal section a form of construction of a double twist twisting spindle.

Fig. 10 is an end elevation of Fig. 9 seen from 50 the right.

A spool holder 3 carrying the unwinding spoolA 2 is mounted on the hollow spindle. Ihe threadv 4 is guided from the unwinding spool 2 through the twisting spindle I to the thread storing ring 56 5 regulating the thread tension and passes from this ring to the winding spool. On the spool holder 3 a hollow thread guiding body 1, stationary with the spool holder, is arranged on a.

.disc 6, the lower edge of which body extends be so constructed that its peripheral 'edge 5 covers the lower edge of the thread guiding body 1 stationary on the revolving spindle I Y(Fig. 2). In order to work coarser threads, an insert body 9 may, as shown in Fig. 3, be placed in the thread guiding body 'l in order to keep the circulating thread away from the unwinding spool which is larger in this instance. Owing to this measure exchanging of the thread guiding body in accordance with the size of thread is no longer necessary. To avoid one sided wear of the bearings within the spool holde 3, it is advisable to loosely insert the weight 8, so that it leaves a certain freedom of movement to the thread guiding body 1 and therefore the spool holder 3, whereby a uniform wearing of the bearings and consequently a longer life is obtained (Figs. 4 and `5). The weight 8, as already mentioned, may either be loosely inserted (Fig. 4) or suspended on a holder I0 (Fig. 6) or on adisc Il (Fig. 8) covering the guiding body 1, it being evident that both the holder lll, and the covering disc Il are not rigidly connected to the spool holder 3. It is advisable, in order to prevent disturbing noises in the case of the loosely inserted weight 8, rto resiliently support same by elastic means which however do not in any way hinder the free movement (Figs. 9 and 10) In this instance the weight may have recesses I2 in which spring controlled bolts I3 are arranged and pressed against the wall 6 and thus resiliently support the weight 8 against any vibrations which may occur.

We claimz- 1. A double twist twisting spindle, comprising in combination with the rotary spindle, a hollow thread guiding body loosely mountedr on said spindle and adapted to rotate in either direction independen thereof, and a thread storing ring formed on s'd rotary spindle and having an edges covering the adjacent edge of said hollow thread guiding body.

2. A double twist twisting spindle, comprising in combination with the rotary spindle, a spool f holder mounted thereon, a hollow thread guiding vbody loosely mounted on said spool holder and adapted to rotate in either direction independently of the spindle, an unwinding spool fixed on said spool holder, and-an insert body adapted to be inserted in said thread guiding body for particularly large unwinding spools to keep the circulating thread away from said spool.

3. A double twist` twisting spindle, comprising i in combination with the rotary spindle, a spool holder mounted'thereon, a hollow thread guiding body loosely mounted on said spool holder and adapted to rotate in either direction independently of the spindle, an unwinding spool in said spool holder, and a weight .loosely inserted in seid houow thread guioingibody adopted to prevent said hollow'thread guiding body from'.

participating in the rotary movement of said spindle. l

4. A double twist twisting spindle, comprising in combination with the rotary spindle, a spool holder mounted thereon, a houow thread guiding body loosely mounted on said spool holder and adap ed to rotate in either direction independently o the spindle, and a weight loosely inserted in said hollow thread guiding body adapted to prevent said holder and said guiding body from participating in the rotary movement of said spindle. 5. A double twist twisting spindle comprising in combination with a rotary spindle, a stationary spool holder, a non-rotatable hollow thread guiding body fixed to the spool holder at the inner end thereof and loosely mounted on said spindle coaxially therewith and in the plane thereof whereby the spindle may rotate in either direction independently of the spool holder and hollow thread guiding body, an unwinding spool on the holder yand a weight suspended in said hollow thread guiding body.

6. A double twist twisting spindle comprising in combination with a rotary spindle, a stationary spool holder, a non-rotatable hollow thread guiding bodyfixed to the spool holder at the inner end thereof and loosely mounted on said spindle coaxially therewith and in the plane thereof whereby the spindle may. rotate in either direction independently of the spool holder and hollow thread guiding body, an unwinding spool on the holder and a weight suspended in said hollow thread guiding body, a disk loosely mounted on the holder within the thread guiding body and a weight suspended on said disk.

in combination with a rotary spindle, a stationary spool holder, anon-rotatable hollow thread guiding bodyfixed to the spool holder at the inner end thereof and loosely mounted on said spindle coaxially therewith and in' th'e plane thereof whereby the spindle may rotate in either direction independently of the spool holder and hollow thread guiding body, an unwinding spool on the holder and a weight suspended in said hollow thread guiding body, an unwinding spool onsaid holder, a weight loosely inserted in said hollow thread guide body and resilient means carried by the spool holder adapted to support said weight without impairing its freedom of movement. i v

8. A ydouble twist twisting spindle comprising in combination with a rotary spiildle, a stationaryA spool holder, a non-rotatable hollowthread guiding body fixed to the spool holder at the inner end thereof and loosely mounted on said spindle coaxially therewith and in the -plane thereof whereby the spindle may rotate in either direction independently of the spool holder and' Kollow thread guiding body, an unwinding spool on the holder and a weight suspended in saidY hollow thread guiding body, an unwinding spool 

